.form_input { width:100%;outline: none; padding: 0px; margin: 0px; height: 33px; line-height: 33px; border: 1px solid #ccc; border-radius: 3px; color: #333; }
.form_input:focus { border-color: #66afe9 }
.form_input.normal{width: 250px;}
.form_input.middle{width: 350px;}
.form_input.block{width: 550px;}
/* IE 低版本浏览器 placeholder 兼容项 */
.form_input.ie-placeholder { color: #666;}